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Old 04-08-2015, 07:01 PM   #15
George
 
2007 25' Classic
Calgary , Alberta
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I just went through the same deliberations, between the GMC half ton 6.2, the Denali 2500 diesel and a Ford F350 diesel. I went with the Denali 2500HD for the following reasons: 1. payload - our 25' Classic has a 1100 lb tongue weight and we like to bring along some toys; 2. quality of interior and ride (a bit nicer than Ford, not quite as nice as the 1500); 3. high altitude Rocky Mountain towing - we like hiking, in the West. The turbo diesel will be better at high altitude - better torque and better mileage.

Decided I can live with the more truck-like ride. We don't need it for day to day grocery shopping.
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Old 04-08-2015, 07:54 PM   #16
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Originally Posted by gwmc View Post
I just went through the same deliberations, between the GMC half ton 6.2, the Denali 2500 diesel and a Ford F350 diesel. I went with the Denali 2500HD for the following reasons: 1. payload - our 25' Classic has a 1100 lb tongue weight and we like to bring along some toys; 2. quality of interior and ride (a bit nicer than Ford, not quite as nice as the 1500); 3. high altitude Rocky Mountain towing - we like hiking, in the West. The turbo diesel will be better at high altitude - better torque and better mileage.



Decided I can live with the more truck-like ride. We don't need it for day to day grocery shopping.

I knew you were going to jump on the Denali Duramax once you get to compare both at the dealership. You will be fine with either Ford, Dodge or GMC exhaust brake and torque . Best wishes and post pics when delivered.

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Old 04-08-2015, 08:47 PM   #17
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I do not have either one. I do have a 2500 diesel Dodge. My advise is to buy the 2500 Denali. We drive the 2500 as a daily driver and like it.
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Old 04-08-2015, 09:35 PM   #18
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I've been shopping for a truck to pull my 27 FC for almost a year -- and have test driven both of these trucks. No question the 1500 is the nicer drive; it's downright car-like and super quiet. BUT the 6.2 requires premium fuel, so you won't be paying less per gallon for fuel with the 6.2. Also you will not find a 1500 6.2 with a rated payload greater than 1500 lbs. unless you get the max trailer tow package, which several dealers have said Chevy/GMC are not building right now. By rated payload, I mean what the red white and yellow sticker on the driver's side door frame says. I know; I've been looking. You definitely have to horse the 2500 around like the heavy truck it is. Also, bear in mind that most diesels quiet down after they've warmed up. So if it seems like a lot of racket from the engine when you test drive, it may be because it's not warmed up. Diesels warm up more slowly than gas engines, especially under light load.
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Old 04-08-2015, 10:56 PM   #19
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Thank you, all, for your comments. I returned to the GMC dealer today with the wife and first we drove the Denali 2500HD, then we drove the Denali 1500 6.2L.

Denali 1500 Iridium towing an Airstream:


The difference between the 1500 and the 2500HD was stark. The 2500HD was much more 'truck-like' (slower off-the-line, a bit bouncey, and not as nimble) and the 1500 6.2L was dramatically like driving a car with a bed in the back (quick, quiet, smooth, nimble).

After driving the 1500 6.2L, I asked my wife which she liked better...and she said "the big one". She liked that the 2500HD had a higher stance relative to traffic around us on the road and felt 'safer' in the more beastly 3/4 ton diesel.

I asked her if the more truck-like ride bothered her and she said 'not at all'. The creature comforts of the Denali trim were sufficient for her to feel a relatively luxurious ride.

Sound-wise, the diesel was remarkably tamed. The Duramax engine sound was not the least bothersome to us. And the Allison shifting was surprisingly smooth. No complaints with that.

Parking... not that much a big deal to me. I'm accustomed to driving a 43' diesel pusher motorhome and a Yukon Denali, so parking the 2500HD was not a problem, though it did take a little more finessing to tuck it away into a typical parking space.

For some reason ALL the 1/2 ton trucks looked and felt pretty much like cars, to me. Of course, I'm accustomed to driving full size SUVs and 1/2 ton trucks.

It took the Denali 2500HD with the Duramax and Allison trans to give me what felt like the true "look and feel" of a real truck... and this gave me an impression of confidence, regarding pulling the airstream.

No doubt the 1500 6.2L Denali would do the job of pulling a 30' Airstream just fine. But the towing-suited mirrors, heavier brakes, higher payload, higher towing rating, and felt-beefiness of the Denali 2500HD with Duramax and Allison transmission won out, for both me and my wife.

It is likely that we will be going with the Denail 2500HD in Iridium, with Duramax and Allison.
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Old 04-08-2015, 11:05 PM   #20
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Originally Posted by ROBERTSUNRUS View Post
Hi, I'm all for half tons; Actually 150/1500 tow vehicles, but

for a 30'er you need the 250/2500 sized tow vehicles.

More so for the payload.

Hi, You made a good choice.
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Old 04-09-2015, 12:17 AM   #21
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Our 43' Class A diesel pusher days are drawing to a close. We loved those days, but we're looking forward to the downsizing.

The Denali 2500HD pulling an Airstream... I think this combo (though with a 30FC) is how we're going to wind up. And we're excited about it!

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Old 04-09-2015, 09:49 AM   #22
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You are making the long term best choice. You can not appreciate the difference until you pull with it. Your wife made the same comment as mine. One day a diesel pulled up next to us with a few Cowboys in it and ever since she said she wanted one of those. I think she was talking about the diesel. Anyway that is what she got. Bigger is better.
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Old 04-09-2015, 10:07 AM   #23
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Denali 1500 w/6.2L vs. Denali 2500HD Duramax

Just my observations,,, I own a couple of Duramax tow vehicles,,,

One is sidelined with an exploded piston, the other is running only needing head gaskets, new FICM and a couple of turbo rebuilds.

The truck with the exploded piston has about 70K miles, the runner has about 160K.

I expect that had we taken the truck to the dealership the repairs on the runner would have cost 15K or more....

The gas engined trucks I have doing the same work have lasted a minimum of 180K before needing major work and are MUCH cheaper and easier to repair.

I am a bit sour on the D-Maxes... But what I said above is true life.


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Old 04-09-2015, 11:17 AM   #24
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You are making the long term best choice. You can not appreciate the difference until you pull with it. Your wife made the same comment as mine. One day a diesel pulled up next to us with a few Cowboys in it and ever since she said she wanted one of those. I think she was talking about the diesel. Anyway that is what she got. Bigger is better.


That's a good one! I love it.
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Old 04-09-2015, 01:06 PM   #25
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Originally Posted by DHart View Post
Our 43' Class A diesel pusher days are drawing to a close. We loved those days, but we're looking forward to the downsizing.

The Denali 2500HD pulling an Airstream... I think this combo (though with a 30FC) is how we're going to wind up. And we're excited about it!
Good choice!
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Old 04-10-2015, 10:23 AM   #26
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2500 HD Denali D-Max

My two cents worth:
We have a 2013 2500 HD Denali with Dura-Max, 2013 Flying Cloud 28 & Reese Twin-Cam WD hitch.
Loaded tongue weight is about 1200 lbs.

We also have two sea kayaks, two bicycles, two Honda generators, backup gasoline, backup diesel, two toolboxes, step ladder and other accessories, all on a pull-out Bedslide and under a roll-up tonneau cover.

With the Reese anti-sway hitch we've had no problems whatsoever, whether being passed by semi's or driving along the St. Lawrence with 40+ mph cross-winds. We've also had to make a few sudden stops.

The crew cab provides back-seat passenger &/or storage space.
Also, inside, the Denali provides comfort for long trips: heated & cooled leather seats with good back support, multi-speaker Bose noise-suppression sound system. The higher stance gives us better visibility(although at the price of a higher center-of-gravity).

Last summer, on a 4000 mile trip through New Brunswick, around a very hilly Gaspé Peninsula, west through Québec, Montreal and Ottawa(with much city driving)down through the Adirondacks and Green Mntns we averaged 12 mpg.
Without the AS, we average ±15 mpg.
All in all, we feel comfortable and safe with our rig.
Good luck with whichever you choose.
Dave
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Old 04-10-2015, 06:21 PM   #27
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I just went through the same deliberations, between the GMC half ton 6.2, the Denali 2500 diesel and a Ford F350 diesel. I went with the Denali 2500HD for the following reasons: 1. payload - our 25' Classic has a 1100 lb tongue weight and we like to bring along some toys; 2. quality of interior and ride (a bit nicer than Ford, not quite as nice as the 1500); 3. high altitude Rocky Mountain towing - we like hiking, in the West. The turbo diesel will be better at high altitude - better torque and better mileage.

Decided I can live with the more truck-like ride. We don't need it for day to day grocery shopping.
I know exactly why you made that choice and I did the same. The Denali 2500HD is a superb truck. Basically a 3/4 ton Cadillac pickup with a great (and quiet!) diesel engine. Acceleration is quite impressive, when you stick your foot in it! I don't think you can have too much truck when towing, even with a lighter weight Airstream.
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Old 04-10-2015, 06:22 PM   #28
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I knew you were going to jump on the Denali Duramax once you get to compare both at the dealership. You will be fine with either Ford, Dodge or GMC exhaust brake and torque . Best wishes and post pics when delivered.
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F450Harley... nice Denali 2500HD ya got there! We will be joining the club next week. Very excited. I know that any of the big three heavy duty truck brands can and will do the job just fine. But there is something about the Denali that really flips my switch.
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